Battery casing



July 5' 1927' R. H. wAPPLx-:R

. BA`TTERY CASING Filed nay 10. 192:5 l

:EUR: 4-

IN V ENTOR lellnhoZd/Y, bhp/:ler

BY Y

www l f/s ATmRNEY.

Patented `-luly 5, 1927.

4UNI'rEn.lfsfTafr; lgS .PATENT-orifice i BE'INHOLD n -warrmampr yoNKERs,Nawyonx, AssIGNoR tro'l AMERICAN. CYs'ioscorn mamas, INC.. A CORPORATIONorNEw Yonx.

, ticalf continuity o finetal; if

l By this`,arrangemenlt;theljijlio A fectively housed in j'tlie` artofflithe'gbattery casingmost conveniengthe "purpose and where it, no' tf l i kel'yA to.' get p of order;

20.alto ether-of 'i twardly' no .sur ace.sucl i 'as,by 'coming'in xitaet'with extraneous objects, :can cause: hortf circuit t0 take Pllwf if Athe .construction off't various-parts.

= As iswellknwninthi's "artve' .often'a battery-.casing of the generalere contemplated-,ismadeffof 'metal "and has the form of acylindricalfeasing. battery 80 of one or. two `Within"the, 'casing, andan incandescentlarnp' is' supported by the asing, usually atone endthereof.

Reference made toj'thefacci'npanying in'ner actief heb armslag ej end sdrawing forminga part fftldfspecitcation, l u and in which likereferencecharacters lindicate likeparts'throu hout'the several figures.

Figure 1 is a su tantially longitudinal section through an improvedbattery casing made in accordance with my invention.

Figure 2 is a fragmentary cent-ral section through one end of thebattery casing, and shows a portion of the rheostat.

Figure 3 is a. section on the line 3 3 of Figure 1, looking in thedirection indicated l5 by the arrows.

Figure 4 is a section on the line 4'4 of Figure 1, looking in thedirection indicated by the arrows.

The battery casing is shown at 5. It is made of sheet metal, and has theform of a cylinder. Two dry cells are shown at 6 and 7, and constitutethe battery, which is housed within the casing. A spring 8 exertspressure upon one end of the battery.

The casing 5 carries a disk 9 of insulatterna'lly,`

outer member eohtact'lg ofA a mniaturdim lcandescent la'mpl?,

details-fin' making a sliding contact with the resistance 50 "wir'e 18.'The slide 22 carries a-thumb'but- LAthe inner contact member vingvmaterial, having the form shown -n'iore paiticularly i'nfFig'uresl1-and2', and held inposi'tion by an end vcap 10. Thisend cap isprovided-with' a socket11,threaded:in-

and fittingint-o this socket'is the 60 Extending through a'holein-thei'endidslk gis-fa sleeve 14,'p'ro'vided with a portion .15,

threaded externally and'fhaving a -diameter "somewhat reduced. Fittedupon lthisisleeve lisa nut16. Mountedupon 'the Vreduced por- V'ti'n'flof -the-'sleevei14 is a-stem 17A of Ainsulating material. carrying aresistance wire 18, the lower end of this in'position by screw`l8.

,The disk 9 carries a pair of small metallic jods1'9` which vat theirbottom ends support avv metallic disk 20.- A screw 26 extends through aholein this disk, andengages the -.75

adjacent end of the stem 17.' The battery casing '5`is provided witha-s'lot21.

' Engagingthetwo rods `19 is a-metallic slide 22,' carrying agcontact'shoe 23, for

wire being secured y cell 7appears atA 26, and fisflocated a short 85distance from,'but in axial' alinement with, 27-of-the-lamp 13. A screw26i extends through la hole in the metallic disk 20, and into thestem'l'.

'Ihe battery contactmember 26 is-lodged 90 directly againsttlievscrew126, which is a part of the rlieostat; and the contact sleeve14, which is also a part of the rheostat, is in engagement with the lampcontact 27. The net result is that the rheostat as a Whole is interposeddirectly between the .battery contact member 26 and the lamp contactmember 27.

This particular arrangement of the rheostat has many advantages. Itgroups together most of the working parts which are apt to give trouble,and places them relatively near to the axial center of the casing, andthus Where they are least likely to be disarranged by accident. ment theouter surface of the metallic casing now presents a continuous anduninterrupted extent of metal from one of its ends to the other. so thatn0 short circuit can be formed by bringing any two exposed por- 11 Bythis arrangetions of the casing-into .ontact with outsideobjectsof-condl1cting material. fe

The stem 17 of insulating material, and various other portions of therheostat, are mounted `quite firmly iin -psiti'on seas mot to be easil ydisturbed o"`disarranged;l The rod 17 is so firmly secured at both ofits ends that it does not tend to become wabbly from use, and thevariousotherparts4 are not likely to work loose.

. The circuit may be tracedas follows: Battery r.cells 6, 7 innerterminal. 26,.,scrcw 26, disk`20, r0ds 19,.slide 22, resistance wi re18,.contactsleeve-1 4, inner, Contact member 27, lamp 13,Outer-.contactgmembernl2, socket. 11, and;cap`1O,;batterycasing 5.andspring 8, back to batterv' `cells. q

. The circuit'isopen when theislidelQQ is in its vlowermost position,uccordingto Eigure 1. In'other Wordsitherez is (no flow oficiarrentwhen .the thumb: buttong21 ishso near the adjacent end. of-the slot. 21as ,todisconneet the contact shoe 23..from the resistance wireia. y

Theoperationiof my device may'bereadily understood from lthe foregoingdescription. 1 i l, .-r -1 .vi-yf; :i

The parts being arranged :and vassembled as above-described and A asshown, inthe drawing, lthe .device is inafgeneral way handledas'othersof itsikind. gf-Tire :o eator by moving the button-24=,so-asytoishi t the slide 22 lengthwiseiof' theaslotl,ieontrols the -abatt-ery batter cfurrentand thus regulates andlontrolst e lamp. i 1* n.:r

Having thus describedfrny nventionwhat II claim as new and -desire -tosecure by Letters Patent is as'follows:

1. AA device of fthe character 4described eoniprisin'v. a hollow .casingo f substantiaily cylindricail formiand providedvwith a slot, mountedWithinsaid casing and provided-with a-contactfmemben a disk ofinsulating material mounted within 'said casing, a r'neostat mounteduponlsaid disk of insul *2v2 material and provided with a contact memberengaging said Contact member of the' battery( said rheostat beingVdisposed adjacent said slot andprovided with another 'contact memberextendin r nf insulating material, an incandescentlaiup carriedrbyffsaidholloweasing and provided l with a contact member eat-endingr from saidf disk''of insulating material, said rheostat being provided with aslide extending through Said slot and operable hy hand forcontrollingrsaid` lamp by varying,r the resistance-'fsaidfrheostat.

comprisiln'gaca'sing provifdcrdwwith a slot, an incandescent lamp' andabatterytcarrled by the "character described Aing andjnterposedhodilfbetweeii said incandescent lamp; and saidiy'batteryga disk ofinsulating.material carried bysa'id casing and Lconne'ted yvlithsiaidrheostat for supiporting the.,l'a,`tter,` a pair :of rods nii'lnted uponsaid diskand 'eXtending therefrom, Vanotherf dis'kearried by 'said rodsand 'cnnected with said rheostatfa slide'mounted upon saidirods and'provideduwith a vthumb Piecev extending 4through js'aid Aslot for enab#ing the'operatortocontrol said rheos'tat. Y 3. In a deviceno'fthecharacter described, the combination'j -of aI casing'""provided withHa-slot, anincandescent lamp carried by vsaid leasing,battery'fmount'e'd Within'said cas- "ing, a rhebstat ldcated Within said'easing and interposed bodily between said' battery -and said lamp,lsaidrheostat being provided with a pairof guiding `members independent ofsaidcasmganddisposed adjacent said slot, and further,provided with aslide engaging lsaid guiding A members, said slide carrying 'a' thumbieee' extending 'through said slot *for enabling. the 'slide to beactuated in lorder to control the resistance of said rheostaftL" Signedat Long Island City, in the county of Queens and State of'New York, this5th day of May '1923. ,Y Y A REINHOLD H. WAPPLER.

from said disk

